Visual flight investigation of control power and sensitivity of variable stability helicopter Topics: CONTROL STABILITY, YAW, CONTROL STABILITY, SENSITIVITY, STABILITY, VISUAL FLIGHT, FLIGHT CONTROL,...
byUnited States. National Advisory Committee for Aeronautics.; Reeder, J. P.; Kraft, Christopher C., Jr.
"Flight tests have been made to determine the longitudinal stability and control and stalling characteristics of a North American P-51H airplane. The results indicate that the airplane has satisfactory longitudinal stability in all the flight conditions tested at normal loadings up to 25,000 feet altitude. At Mach numbers above 0.7, the elevator push force required for longitudinal trim decreased somewhat because of compressibility effects. The elevator stick force per g in accelerated... Topics: NACA Report, Mustang (Fighter plane), Airplanes -- Control, Stability of airplanes, Aeronautics,...
byUnited States. National Advisory Committee for Aeronautics.; Kraft, Christopher C., Jr.; Reeder, J. P.
"Flight tests of a F-51H airplane with two different vertical—tail assemblies were made to determine lateral and directional stability and control characteristics. The airplane had satisfactory directional stability in the landing, approach, and wave-off conditions with either tail. In the power— on clean and glide conditions, however 9 the airplane had weak directional stability with the original tail. The production tail, which had a 7—inch fin extension and a shorter span rudder,... Topics: NACA Report, Aeronautics, Airplanes -- Models -- Testing, Airplanes -- Control, Stability of...